Bottle-capping machine.



J. J. GAYNOR & P. C. LIEBER.

BOTTLE CAPPING MACHINE.

APPLICATION FILED ocr. 21. 1913.

2 SHEETS-SHEET 1.

INVEN TORY a 7707' Jd l'eber'.

TORNE Y.

Patented Apr. 13, 119115.

WITNESSES:

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Twill whom it may concern: 1 1 l Be .it known t at we, Jonn Gannon and. PETER 'CAnL LIEBEIR, cltlzens of the United States, and residents of Indianapolis,

county of- Marion, and State of Indiana, have invented a certainnew and useful BottleCapping Machine; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had, to the accompanying drawings, in which like letters refer to like parts. 7

The. object of this invention is to improve the construction of compensating mechanism in bottle capping. machines of, the type set forth in the application of John Gaynor and Peter can Lieber, Serial No. 786,030,

.filed August 21, 1913, for bottle capping machines One feature of theunventmn consists .in

the. improvement of the compensating de-- vice for supporting bottles and particularl'y in the employment of a do piyotally mounted. at its upper end an with-its lower and freefend ada t'edto be supported by inclin'edsurfaees oil which it may slip when the strain becomes 'suficiently great and thereafter. wedged hetweentwo surfaces, said wed gi actioure'sistin'gthe downward movement 2% the bottle. support .andj yet being sensitive to the needs ot movement of the bottle support to acconnn'odate various bottles. Tohthat end upon one side of said dog at .its'loWer end there isa shoulde'r of slight inclination adaptedfto rest upon a corresponding inclined surface of a stationary plate and be held thereon by a spring sup ported plate having at its upper .end a considerably inclined surface and preferably a convex surface bearing against a similarly inclined and convex sur ace ofthe dog. en. the strain becomis too greahthe dog ate and the movable plate correspondingly yields. Que great advantagein the construction Wlnch is set forth herein is that the dog is self sharpening and automatically retains its peculiar form and also. its action is controlled by. a

light spring, but the pressure jis fdependent upon, the friction created by thedog hav ng the surface referred to. S'ald dog is conturn or tained within a post and operates within a recess 1n such post and said post is connected with the bottle support. The. bottle support is telescoped having an upper tube adapted to telescope over a lower tube comparatlvely stationary. Along with the foregoing 1s a lubricating arrangement whereby the lubrlcating oil is caused to circulate by reason of, the movement of'the parts of the compensating device. Another feature of the inv'entionconsists 1n thesto .constructio lior limiting the. re-

ownward movement of the bottle su 'port..

till another feature of the invention conslsts in means for preventing the chipping ofi of the lip of the bottle by the throat of the crowning plate, particularly after the plunger mechanism has worn so as to permit the mouthjof the bottle to enter the throat stood from the. accompanying drawings and the following description and claims.

In the drawings, Figure 1 is an elevation of a bottle capping machine with parts s to cause it to chip the upper ends broken away and with the casing in central vertical section. Fig. 2 is an elevation of a bottle and a central vertical section through the crowning head, both on an enlarged scale. Fig. 3 is a section on the line 33 of Fig. 1, on an enlarged scale and with parts broken away at the bottom and showin the parts in their normal andlocked positlon. lFi 4: is the same showing the parts iuactuate or unlocked position. I .lFig. 5 is a section on the line of .Fig. 3. Fig. 6 is a perspective viewof one of the removable extensionson the upper end of. the'pl'u'nger in-the head. FiTg. 7 is a perspective View of rocatethelr up er ends through a table 16' and centrallyjt rough said table a. column 17 extends which carries the crowning head plate 18. v 20 isa bottle in position to be crowned. The foregoing ,mechanism is old and constitutes'no novel part of this invention excepting in connection with improvements hereafter set forth.

They-bottle support 15 upon which the bottle-rests has at its lower end a tube 21 'which surrounds and telescopes on the u per end of a compensating tube 23 and with n the round tube 23 a rectangular tube 24 is secured. by a set screw 25. The bottle supportin tube 21 hasabar 26 extendingdownward rom it through the tubes 15 Sand 24 and lying, against the inner wall of the tube 24 and having a longitudinal recess 27 therein. Inthe upper pocket of said recess the u per end of a dog 28 lies. The lower end oi said dog is free with a long beveled surface 30 on one side and a notched recess on the other side with a short beveled shoulder 31. The extreme lower point is convex, sub-- stantially as shown in Fig. 3. so as to wedge in between two plates 32 and 33. The plate 32 is fixed and is secured to the inner surface of the square tube 24 and it has a beveled shoulder 33 corresponding with the shoulder 31 on the dog 28, both of said shoulders being inclined about thirty degrees from a'horizontal line. The plate 33 is movable, being'supported by a spring 35- on an adjusting nut 36 on a bolt mounted 37 in a plate 38 secured to the lower endof the bar 26 by a screw 39. The upper end of the movable plate 33 is beveled at 40 to correspond with the bevel 30 on the lower end of the dog 28, said two surfaces being beveled so as to be about thirty degrees from a vertical line, but somewhat convex, as shown.

I In operation the parts arenormally in the position shown in Fig. 3, the lower end of the dog resting by, means of its shoulder 31 on the shoulder 34 of the plate 32 and wedging against the bevel 40 of the movable plate 33. If the downward strain during the capping of a bottle upon the bar becomes excessive, the downward pressure of the dog 28 will cause it to be pushed toward the movable plate 33 by the shoulder 34 on the plate 32 which is fixed to the square stationary tube 24 and a further downward movement of the dog 28 will cause the inclined surface 30 of said dog to bear against the inclined surface 40 and force the movable plate 33 downward against the action of the spring 35, as indicated in Fig. 3. By reason of the slight degree of bevel of the shoulders 31 and 34 it will require a certain amount of strain before the dog 28 willbe pushed off against the plate 33 suflicientl to force it downward... Therefore, when ttles" vary- .ing in size are being capped, this yieldin -or compensating means for supporting the ottles will allow for such variations in the sizes ofthe bottles and even after the dog 28 has been dislodged from the shoulder 34 on the fixed plate 32, the beveled surfaces 30 and 40 will still cause sufficient friction between the dog and fixed plate 32 to prevent any sudden downward movementof the bottle support and, therefore, the contents 'of the bottle will not be agitated by the machine during the capping.

The downward movement of the tube 15 is limited by a pin 45 which extends diametrically through said tube and the bar 26 engaging'a collar 46 secured to and surrounding a tube 47 which surrounds and is secured to the intermediate portion of the column 17. The bottle supporting mechanism is elevated by a cam track 52 secured to the column17 and projecting laterally outward and upon it rollers 51 rlde, said rollers being secured tothe lower ends of the tube 23. At the lower end of said tubes 23 there is also an inwardly extending arm 53 projecting beneath-the cam track 52 so that said cam track acting upon said arm will forcibly return the bottle supporting mechanism, if one does not wish to rely merely upon gravity for causing such return.

Another feature of the invention consists in the means for preventing the shearing off of the lip of the neck of a bottle when for any reason the bottle is raised by the machine too high in the throat of the capping device. This is a very serious difliculty as it destroys a great many bottles during the operation of machines of this type. In the crowning head mechanism, the plate 18 is provided with a conical recess 60 in which the mouth of the bottle projects and wherein the crown or cap 61 is forced u on the lip of the bottle by the lower end 0 a plunger 62 resisting the elevating movement of the I bottle support. The plunger is mounted in llll llli

' ile end of the planer is provided with a central recess 6'3 in whch the reduced end 68 of an extension 69 extends. Thisextension limits the upward morement of the plunger to suit the bottle. Preferably in the beg nning the throat 60 and the case 63 and cap 66 are arranged so that no extension is needed and the mouth of the bottle will not be permitted to ter the throatso far as to have the-lip thereof chipped or injured. As' the throat and plunger wear, such wear must be taken up and this is accomplished by'adding the extension -69, using an extension of suitable thickness. As the wear becomes greater, a washer 70 may be added.

For the purpose of lubricating the comensatin construction an oil duct leads from a c lamber below the movable plate 33 through the body of the post 26 to the chamber above said movable plate. Also there is a duct 81 leading from said upper chamber throu h the tube 24L. The chambers within the tu cs 23 and 2A are charged with oil and as the parts vertically reciprocate, the oil is pumped or forced upward through said oil .ducts to the upper chamber so as to circulate the lubricatmg oil.

From the foregoing it is seen that the compensating mechanism is simplified and the parts are durable and eflicient. The dog 28 is self-sharpening. By that is meant that thepre'ssure of the movable plate 33 against the lower end of the dog causes the shoulder 31 on the dog to wear straight in its frictional engagement with the shoulder 34 on the plate 32, and the vertical surface of the extreme lower end of the dog will bear also against the plate 33 and keep it worn so that the shoulder 31 and said vertical surface will remain of the same dimensions and at the same angle with each other as the dog wears. The same thing is true of the opposite surfaces on the plate 32, so that after long use these various engaging surfaces between the dog and plate 32 will be the same as in the beginning. The engaging surface between the dog and plate 33 will also wear and tend to sharpen the dog, but the wear will be compensated for'by the spring before mentioned and the further sharpening of the point of the dog on the side next to the plate 33 will tend to promote the wedging action of the plate 33 against the dog.

It is also to be noted that with the oil lubrication, the frictional surfaces between the dog and two plates will always be thoroughly and automatically lubricated. Also a positive means is provided for limiting the return movement of the bottle holder regardless of any wear or variation in the cam track 52 below.

It is also clear that the machine can be adjusted to prevent the chipping of the mouths of the bottles and avoid great loss the o li l1 operation of the machine so that no one can accidentally or intentionall change the operation of the machine. fhis is a very important feature of the invention.

' The invention is:

1. A bottle capping machine including a bottle support, a dog for supportin said bottle support, and yielding means resisting the downward movement of the lower end of said dog and having an inclined surface engaging said dog so that the dog will be self-shar ening.

2. A bott e capping machine including a bottle support having a vertical recess there in with a pocket in its upper end, a dog for supporting the bottle support with its upper end located in said pocket, and yielding means for resisting the downward movement of the lower end of the ,dog.

3. A bottle capping machine including a eration of such machines, and the bottle support, a relatively stationary tube within which the lower portion of said bottle support is reciprocated, a dog for supporting said bottle support, means on said stationary tube for frictionally resisting the downward movement of the lower end of the dog, and yielding means for resisting such movement of the dog.

4. A bottle capping machine including a bottle sup ort, a relatively stationary tube within whlch the lower portion of said bottle support is reciprocated, a dog for supporting said bottle support, means on said stationary tube for frictionally resisting the downward movement of the lower end of the dog, and yielding means tending to hold the dog in frictional engagement with said fixed means and resisting the downward move ment of the dog after it has escaped from said fixed means. 7

5. A bottle capping machine including a bottle support, a tube in which the lower part of the bottle support telescopes, a plate secured to the inner wall of said tube with the upper edge thereof beveled downwardly, a dog for having an inclined shoulder adapted to rest e means is inaccessible during the supporting said bottle support upon the inclined upper surface of said plate, and yielding means for holding the lower end of said dog on the upper end of said fixed plate until the strain forces the dog oil of said plate and thereafter resisting the downward movement of the dog.

6. A bottle capping machine including a bottle support, a tube in which the lower part of the bottle support telescopes, a plate secured to the inner wall of said tube with the upper edge thereof beveled downwardly, a dog for supporting. said bottle support having an inclined shoulder adapted to rest upon the inclined upper surface of said plate, a downwardly movable plate bearing egainsttlie wall of the recess in said bottle fixed our signatures in thepresence of the support en one side, and with 'an inclined witnesses herein named. sur ace bearmgon the lower end of said dog JOHN J. GAYNOR.

" so as to force said, dog toward said fixed PETER CARL LIEBER.

' movable plate upward.

plate, and a spring tending to force said Witnesses:

4 v J. H. Wmms, In witness whereof, we have he 'euntoaf- I O. M. MOLAUGHLIN. 

